Section 2 Helicopter refuelling facilities
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, July 2022 - Part 5 Main and Auxiliary Machinery - Chapter 14 Machinery Piping Systems - Section 2 Helicopter refuelling facilities

Section 2 Helicopter refuelling facilities

Parent topic: Chapter 14 Machinery Piping Systems

2.1 Fuel storage

2.1.1 Storage tanks and skids are to be located in a designated area as remote as practicable from machinery and accommodation spaces, escape routes and embarkation stations and are to be suitably isolated from areas where there are sources of ignition.

2.1.2 The storage and handling area is to be permanently marked. Instructions for filling fuel are to be posted in the vicinity of the filling area.

2.1.3 The tanks are to be protected from helicopter crashes, mechanical damage, solar and flare radiation and high temperatures as a result of a fire occurring in an adjacent area.

2.1.4 Tanks are to be of approved metallic construction and special attention is to be given to the inspection procedures, mounting and securing arrangements and electrical bonding of the tank and fuel transfer system. Transportable tanks shall be specially designed for their intended use and equipped with suitable fittings, lifting and fixing arrangements and earthing, and are to comply with the relevant Codes for the transportation of dangerous goods in ships.

2.1.5 Tank ventilation pipes are to be fitted with an approved type of vent head with pressure-vacuum valve and flame arrester. The vent outlet is to be located in a safe position away from accommodation spaces and ventilation intakes.

2.1.6 The fuel storage area is to be provided with a collecting tray of suitable capacity for containing leakage from the tanks and pumping units, and for draining any such leakage to a tank or container located in a safe area. For tanks forming an integral part of the unit’s structure, cofferdams are to be provided as necessary to contain leakage and prevent contamination of the fuel.

2.2 Fuel pumping and filling

2.2.1 The tank outlet valve is to be mounted directly onto the tank and shall be capable of being closed from a remote location in the event of fire. Ball valves are to be stainless steel, anti-static, fire-tested type.

2.2.2 The pumping unit is to be connected to only one tank at a time. Pipes between the tanks and the pumping unit are to be of stainless steel or equivalent material, or flexible hoses of an approved type, fire-tested to an acceptable National Standard. Such pipes or hoses are to be protected from mechanical damage and be as short as possible. Where a flexible hose is used to connect the pumping unit to a tank, the hose connection is to be of the quick-disconnect, self-closing type.

2.2.3 Pumping units are to be capable of being controlled from the refuelling station.

2.2.4 Pumping units are to incorporate a device to prevent over-pressurisation of the filling hose.

2.2.5 Arrangements for fuel metering and sampling are to be provided.

Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.